有机羧酸在弱碱性树脂上的吸附平衡  

SORPTION OF CARBOXYLIC ACIDS WITH WEAKLY BASIC RESINS

作　　者：胡徐腾[1] 张瑾[1] 戴猷元[1] 

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《化工学报》2000年第4期555-559,共5页CIESC Journal

基　　金：国家自然科学基金!资助项目 (No .2 98361 30 )

摘　　要：The sorption equilibrium experiments were carried out for lactic acid, acetic acid and succinic acid monocomponent systems and lactic acid-acetic acid and lactic acid-succinic acid two-component systems. The effect of weakly basic resins (D301G, D301R), strongly basic resin (201×4 ) and porous resin (D4020) on sorption equilibrium was evaluated. The monocomponent sorption equilibrium was correlated with general equilibrium isotherm. The correlation results were in good agreement with experimental ones. Based on these isotherms and material balances, two-component competitive sorption isotherms could be successfully predicted by monocomponent equilibrium sorption isotherm parameters. The effect of pH on two-component equilibrium uptake was systematically investigated.The sorption equilibrium experiments were carried out for lactic acid, acetic acid and succinic acid monocomponent systems and lactic acid-acetic acid and lactic acid-succinic acid two-component systems. The effect of weakly basic resins (D301G, D301R), strongly basic resin (201×4 ) and porous resin (D4020) on sorption equilibrium was evaluated. The monocomponent sorption equilibrium was correlated with general equilibrium isotherm. The correlation results were in good agreement with experimental ones. Based on these isotherms and material balances, two-component competitive sorption isotherms could be successfully predicted by monocomponent equilibrium sorption isotherm parameters. The effect of pH on two-component equilibrium uptake was systematically investigated.

关 键 词：弱碱性树脂 吸附平衡 有机羧酸 

分 类 号：TQ216[化学工程—有机化工] O622.5[理学—有机化学]